Angle brackets cause difficulties during parsing: since there is a '>>' operator, getting a type like 'List<List<int>>' to parse properly would require either a

Angle brackets cause difficulties during parsing: since there is a '>>' operator, getting a type like 'List<List<int>>' to parse properly would require either a hack in the lexer or requiring a space between closing angle brackets (as in 'List<List<int> >') This is a well-known problem in C++; some of the parsing rules were changed in C++11: http://stackoverflow.com/questions/15785496/c-templates-angle-brackets-pitfall-what-is-the-c11-fix http://stackoverflow.com/questions/15785496/c-templates-angl...